I primarily use a PI machine in the areas I detect in, but I like to have the option of using a VLF to check for smaller gold in the spots where I find nuggets. (In mild ground my old GMT still pings smaller gold than my prospecting buddy with his 6000, so there’s still a good reason to carry one around.) At the moment though, the only option for me is to carry two machines, which isn’t really viable when hiking long distances. Two of the biggest problems I face is that current shafts don’t collapse down small enough to fit in my backpack and detectors don’t come apart easily enough to pack them down to make efficient use of bag space. I’d like to be able to carry one highly collapsible shaft that can be used with two machines and for all the parts to neatly fit in alongside the other tools I carry.